Finish-remover.



CARLETON ELLIS, OF COMPANY, 01"

STATEtE es rnnr ostr ch.

Application filed September To all whom it may concern:

citizen of the United States, and a resident of Larclunont, in the county of ll'estchester I and State of New York, have invented certain new and llSOllll improvements in l inish Removers, of which the lollowing is n spec e llcation.

This invention relates to paint and varnish remover comprising an nqueous emulsion of organic solvents, andrelates particularly to aqueous solutions of cellulose with these or gnnic solvents.

Cellulose dissolves in a number o?" aqueous solutions to form viscid solutions, which are l capable of iornung burly permanent cmul- 1 sions with \olatileorganic. solvents such as (ellulose for instance may be dissolved in cuprammonium hydroXid or Schxveitzens re agent, or in chlorid ol zinc, whereby the chlorid solution becomes materially thickened amvl alcohol, amyl acetate and other esters.

' and capable oi emulsilicatiou with various organic solvents.

A suitable composition may be made by dissolving cellulose in Schweitzers reagent to form a thick syrupy liquid. To 10 volumes of this liquid there is gradually added with heating, as for instance in it suitable emulsilying apparatus, 7 volumes oi a mixture composed oi amyl alcohol, 4 ports, amyl acetate 2 parts and benml -l parts. Another formula comprises zinc chlorid dissolved in twice its weight of hydrochloric acid, thickening by the addition to and solution therein of pyroxylin or nitro cellulose to form a thick body. This solution is'emulsilied with about one hall its volume ol' conunercial allyl alcohol, such as is obtained from wood distillation. Another l ormula comprises cellulose dis solved in zinc chlorid solution, the latter containing preferably over 50 per cent. of zinc chlorid, whereby a thick liquid to a paste is obtained. ()ne. volume o'l' this compound is emulsified with. an equal volume ol a mixture of l part creosote, 1 part amyl acetate and l part wood tar oil. Still another l'ormula comprises casein and nitro-cellulose dissolved in a strong acid solution o'l zinc chlorid lo maltc o suitably thiclwned nqueoussolulion and in cmulsilying the mixture with a nearly equal volume ol' av mixture o'l solvents com- Patented Dec. 31, 1997.

18,1907. $erial No. 393.53%:-

- 7 posed of resin spirits 1 part, adipin lieton'e 1 Be it known that i, tl-xnLn'ror-f rhmis, a

port, and benzol 1 part. Viscose may be 1 likewise emulsi'lied, but these solutions have little permanency. 1

By the use of solvents lor'cellulose, above described, it is possible to make removers having at will an alkaline, acid or neutral reaction, tl is adapting the remover to the particular paint and varnish to be removed. It is also possible to use beside, or in lieu of the solvents mentioned, various alcohols and al- .coliolic bodies; wood and denatured alcohol, ncetonc and other'ketones, as Well as aldehydes, ethers and esters may be used to 9, greater or lesser degree; it being borne in mind that it the orgimic solvent is freely soluble in water that a too large an amount precipitmes more or of the cellulose from l solution, thereby reducing the emulsifying tendency. Various mechanical thickeners, such as wood tlour, or ordinary flour or 1 starch, linely ground mineral matter, such as Whiting, inlusorial earth and the like may be added if desired. The organic solvents eni-' l ployed may be thickened if desired to render Z eniulsitication easier, or to restrain evaporation with such t-hickeners as YVSLKBS, pyroxylin and the like.

tails ol' which description 1, of course, do not limit myselt vrhatt I claim is;

A linish remover comprising an emulsion of cellulose and volatile organic solvents.

2. A linish remover comprisin a solution of cellulose andorgonic finish sdlvents, said composition having an emulsified chailctcr and being llucnt and llownble.

3. A linish remover comprisim an aqueous solution of cellulose and organic finish solvents.

-l'. A linish remover comprising an aqueous solution ol cellulose and an alcoholic body.

5. A linish remover comprising an emulsion of a vise-id aqueous solution of cellulose and linish solvents.

(S. A linish remover comprising an emulsion ot'a viscid aqueous solution of cellulose, an alcoholic body and an aromatic hydrocarbon.

l l i l l l i l i l l. A finish remover comprising an cmul linving described my invention to the do y so ubmn 05 i1 soivents, aompi'l ole E3'g1ed Lamhmont in the county of Westcmsterand Statenf NeWY rk thls 14th 10 CARLETON ELLIS.

in il-ZEODORE ELLIS,

BRIDELLA M. ELLIS. v 

